YD type carbide surfacing electrode showsIt is madeofgranular sinterdhardalloy made with mixed elastic matrix.Coated with alayerofspecial flux and coloring, toidentify particle sizeclass.Cementedcarbide particlesmainly containing cobalt tungstencarbide, thehardness is HRA89-91Purpose: YD type electrode is mainly used for surfacing oil, mining, coal mining, geology, construction and other industries in some serious wear and tear or a combination of cutting the workpiece. Such as: milling shoes, wear shoes, stabilisers, reamers, drill pipe joint, hydraulic cutter, scraper, plow bit, core drill bit, drill piling, spiral drill.Surfacing process: YD type electrode is by oxygen acetylene flame welding, the use of welding Tsui should be larger than the ordinary welding carbon steel welding Tsui. The flame should be transferred into a neutral or slightlyreducing flame. Neutral flame cone tip position should be strictly controlled, cannot come into contact with hard alloy particles and the surface of the workpiece, so as to avoid burning is than ordinary gas welding welding Tsui provided to high. This is influence of surfacing layer wear life of key, never ignore.